Question

Solve 4x - 2x - 2 = -42.
A. -20
B. -7
C. -5
D. 0

Answer 1

the answer is A

Answer 2

4x-2x-2=-42

Since 4x and -2x are like terms, add -2x to 4x to get 2x.
2x-2=-42

Since -2 does not contain the variable to solve for, move it to the right-hand side of the equation by adding 2 to both sides.
2x=2-42

Subtract 42 from 2 to get -40.
2x=-40

Answer 3

http://www.mathway.com/answer.aspx?p=calg?p=4xSMB15-SMB152xSMB15-SMB152SMB15SMB01SMB15-42?p=1?p=?p=?p=?p=?p=0?p=?p=0?p=?p=?p=SolveSMB15theSMB15Equation

Answer 4

Thank you guy's very much.

Answer 5

ur welcome:)

Answer 6

2x=-40 divide 2 to both sides and get your answer

Answer 7

x=-20 So A